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Add support for empty projection in RecordBatch::project #2691

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merged 2 commits into from
Sep 9, 2022

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Dandandan
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Which issue does this PR close?

Closes #2690

Rationale for this change

Make it easier to deal with zero-column RecordBatches.

What changes are included in this PR?

Are there any user-facing changes?

@github-actions github-actions bot added the arrow Changes to the arrow crate label Sep 8, 2022
arrow/src/record_batch.rs Outdated Show resolved Hide resolved
@tustvold tustvold merged commit 5ccf73e into apache:master Sep 9, 2022
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ursabot commented Sep 9, 2022

Benchmark runs are scheduled for baseline = 5e2b4c7 and contender = 5ccf73e. 5ccf73e is a master commit associated with this PR. Results will be available as each benchmark for each run completes.
Conbench compare runs links:
[Skipped ⚠️ Benchmarking of arrow-rs-commits is not supported on ec2-t3-xlarge-us-east-2] ec2-t3-xlarge-us-east-2
[Skipped ⚠️ Benchmarking of arrow-rs-commits is not supported on test-mac-arm] test-mac-arm
[Skipped ⚠️ Benchmarking of arrow-rs-commits is not supported on ursa-i9-9960x] ursa-i9-9960x
[Skipped ⚠️ Benchmarking of arrow-rs-commits is not supported on ursa-thinkcentre-m75q] ursa-thinkcentre-m75q
Buildkite builds:
Supported benchmarks:
ec2-t3-xlarge-us-east-2: Supported benchmark langs: Python, R. Runs only benchmarks with cloud = True
test-mac-arm: Supported benchmark langs: C++, Python, R
ursa-i9-9960x: Supported benchmark langs: Python, R, JavaScript
ursa-thinkcentre-m75q: Supported benchmark langs: C++, Java

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Support empty projection in RecordBatch::project
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